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Single Answer MCQ
Q-00020082

During exercise, what physiological change occurs to the heart?

1

Decreased stroke volume

2

Increased heart rate

3

Decreased cardiac output

4

Increased peripheral resistance

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Sandeep Chaturvedi

Sandeep Chaturvedi

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Social science and humanities educator with 14+ years of experience reviewing CBSE SST, economics, commerce, arts, and vocational content.

M.A. HistoryM.A. Political ScienceB.Ed.

Answer and Solution

Answer

B. Increased heart rate

Solution:

During exercise, the heart rate increases to supply more oxygenated blood to the muscles. This supports higher levels of activity and energy expenditure.

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